ATE256940T1 - SCANNING ANTENNA DIVERSITY SYSTEM FOR VEHICLES - Google Patents
SCANNING ANTENNA DIVERSITY SYSTEM FOR VEHICLESInfo
- Publication number
- ATE256940T1 ATE256940T1 AT99119878T AT99119878T ATE256940T1 AT E256940 T1 ATE256940 T1 AT E256940T1 AT 99119878 T AT99119878 T AT 99119878T AT 99119878 T AT99119878 T AT 99119878T AT E256940 T1 ATE256940 T1 AT E256940T1
- Authority
- AT
- Austria
- Prior art keywords
- level
- periods
- level comparison
- short
- comparison periods
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
- H04B7/0808—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching comparing all antennas before reception
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
- H04B7/0814—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching based on current reception conditions, e.g. switching to different antenna when signal level is below threshold
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0831—Compensation of the diversity switching process for non-uniform properties or faulty operations of the switches used in the diversity switching process
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Details Of Aerials (AREA)
Abstract
The maximum current reception signal level for the current reception situation is determined in very short level comparison periods repeatedly initiated after longer periods. The level comparison periods are selected to be so short that reception is not noticeably affected. The diversity processor does no switching during level comparison periods. The updated maximum level switch position is used for switching received signals to the receiver. The system has a multi-antenna system with at least two antennas (A1,A2,..), a controllable logical switch (2) for diversity reception and a diversity processor (4) that changes the switch to another position in the event of noise. The maximum current reception signal level for the current reception situation is determined in very short level comparison periods repeatedly initiated after longer periods. The level comparison periods are selected to be so short that reception is not noticeably affected. The diversity processor does no switching during level comparison periods. The updated maximum level switch position is used for switching received signals to the receiver.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19847887A DE19847887A1 (en) | 1998-10-18 | 1998-10-18 | Scanning antenna diversity system for vehicle determines maximum current reception signal level for current reception situation in very short level comparison periods not affecting reception |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE256940T1 true ATE256940T1 (en) | 2004-01-15 |
Family
ID=7884777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT99119878T ATE256940T1 (en) | 1998-10-18 | 1999-10-07 | SCANNING ANTENNA DIVERSITY SYSTEM FOR VEHICLES |
Country Status (5)
Country | Link |
---|---|
US (1) | US6430404B1 (en) |
EP (1) | EP0998058B1 (en) |
AT (1) | ATE256940T1 (en) |
DE (2) | DE19847887A1 (en) |
ES (1) | ES2210942T3 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19858465A1 (en) * | 1998-12-17 | 2000-06-21 | Heinz Lindenmeier | Scanning diversity antenna system for vehicles has logic switch changed back to incremental mode from maximum level switching mode if noise detected by diversity processor |
ATE323978T1 (en) * | 2001-03-02 | 2006-05-15 | Fuba Automotive Gmbh | DIVERSITY SYSTEM FOR RECEIVING DIGITAL TERRESTRIAL AND/OR SATELLITE RADIO SIGNALS FOR VEHICLES |
DE10209060B4 (en) * | 2002-03-01 | 2012-08-16 | Heinz Lindenmeier | Reception antenna arrangement for satellite and / or terrestrial radio signals on vehicles |
DE10304431A1 (en) * | 2003-02-04 | 2004-08-05 | Lindenmeier, Heinz, Prof. Dr.-Ing. | Scanning antenna diversity system is used for frequency modulated audio wireless signals in a road vehicle |
JP4103666B2 (en) * | 2003-04-03 | 2008-06-18 | 株式会社村田製作所 | Wireless receiver |
DE102006039357B4 (en) * | 2005-09-12 | 2018-06-28 | Heinz Lindenmeier | Antenna diversity system for radio reception for vehicles |
DE102007017478A1 (en) * | 2007-04-13 | 2008-10-16 | Lindenmeier, Heinz, Prof. Dr. Ing. | Receiving system with a circuit arrangement for the suppression of switching interference in antenna diversity |
DE102008031068A1 (en) * | 2007-07-10 | 2009-01-15 | Lindenmeier, Heinz, Prof. Dr. Ing. | Antenna diversity system for relatively broadband radio reception in vehicles |
DE102007039914A1 (en) * | 2007-08-01 | 2009-02-05 | Lindenmeier, Heinz, Prof. Dr. Ing. | Antenna diversity system with two antennas for radio reception in vehicles |
DE102008003532A1 (en) * | 2007-09-06 | 2009-03-12 | Lindenmeier, Heinz, Prof. Dr. Ing. | Antenna for satellite reception |
EP2207273B1 (en) * | 2009-01-09 | 2016-01-06 | AKG Acoustics GmbH | Method and device for receiving digital audio data |
EP2209221B8 (en) * | 2009-01-19 | 2019-01-16 | Fuba Automotive Electronics GmbH | Receiver for summating phased antenna signals |
JP5310070B2 (en) * | 2009-02-19 | 2013-10-09 | 日本電気株式会社 | Wireless communication apparatus, wireless communication method, and wireless communication system |
DE102009011542A1 (en) * | 2009-03-03 | 2010-09-09 | Heinz Prof. Dr.-Ing. Lindenmeier | Antenna for receiving circularly in a direction of rotation of the polarization of broadcast satellite radio signals |
DE102009023514A1 (en) * | 2009-05-30 | 2010-12-02 | Heinz Prof. Dr.-Ing. Lindenmeier | Antenna for circular polarization with a conductive base |
US9276623B2 (en) * | 2013-08-20 | 2016-03-01 | Aviacomm Inc. | Cost effective multiband RF front-end architecture for mobile applications |
US10623239B1 (en) * | 2019-02-22 | 2020-04-14 | Ford Global Technologies, Llc | Multiple antenna telematics controller radio recovery |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04358425A (en) * | 1991-06-04 | 1992-12-11 | Sony Corp | Diversity receiver |
DE4236089A1 (en) * | 1992-10-26 | 1994-04-28 | Siemens Ag | Method and arrangement for activating antennas of a radio transceiver |
DE4403612B4 (en) * | 1994-02-05 | 2008-10-02 | Lindenmeier, Heinz, Prof. Dr. Ing. | Circuit arrangement for a multi-antenna scanning diversity system for motor vehicles |
DE4441761A1 (en) * | 1994-11-23 | 1996-05-30 | Lindenmeier Heinz | Multi-antenna scanning diversity system for vehicles |
DE19607045A1 (en) * | 1996-02-24 | 1997-08-28 | Lindenmeier Heinz | Receiving antenna scanning diversity system for the meter wave range for vehicles |
DE19618333A1 (en) * | 1996-05-07 | 1997-11-13 | Lindenmeier Heinz | Circuit arrangement for functional testing of mobile radio reception systems |
JP3139440B2 (en) * | 1998-01-14 | 2001-02-26 | 日本電気株式会社 | Antenna and its receiving circuit abnormality detecting device |
DE19823237A1 (en) * | 1998-05-25 | 1999-12-02 | Heinz Lindenmeier | Radio system for remote control functions in stationary vehicles |
US6275712B1 (en) * | 1999-02-26 | 2001-08-14 | Nokia Mobile Phones Ltd | Mobile station control states based on available power |
-
1998
- 1998-10-18 DE DE19847887A patent/DE19847887A1/en not_active Withdrawn
-
1999
- 1999-10-06 US US09/413,124 patent/US6430404B1/en not_active Expired - Lifetime
- 1999-10-07 DE DE59908096T patent/DE59908096D1/en not_active Expired - Lifetime
- 1999-10-07 AT AT99119878T patent/ATE256940T1/en not_active IP Right Cessation
- 1999-10-07 ES ES99119878T patent/ES2210942T3/en not_active Expired - Lifetime
- 1999-10-07 EP EP99119878A patent/EP0998058B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59908096D1 (en) | 2004-01-29 |
US6430404B1 (en) | 2002-08-06 |
EP0998058B1 (en) | 2003-12-17 |
DE19847887A1 (en) | 2000-04-20 |
EP0998058A3 (en) | 2000-05-10 |
ES2210942T3 (en) | 2004-07-01 |
EP0998058A2 (en) | 2000-05-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |